2222544 has 40 divisors (see below), whose sum is σ = 6046240. Its totient is φ = 701568.

The previous prime is 2222543. The next prime is 2222567. The reversal of 2222544 is 4452222.

It is a self number, because there is not a number n which added to its sum of digits gives 2222544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (151156).

2^2222544 is an apocalyptic number.

2222544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3023120).

2222544 is an abundant number, since it is smaller than the sum of its proper divisors (3823696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222544 is a wasteful number, since it uses less digits than its factorization.

2222544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467 (or 2461 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 2222544 is about 1490.8199086409. The cubic root of 2222544 is about 130.5018863220.

Adding to 2222544 its reverse (4452222), we get a palindrome (6674766).

The spelling of 2222544 in words is "two million, two hundred twenty-two thousand, five hundred forty-four".